Drill oiler



April 30, 1935. J, H. E. I EssARD VANITY CASE Filed April 14, 1954 2 Sheecs-Sheet 2 WLw/wbo/n cJ f1. E. Legga/'d' `15 atented Apr. 30, 1935 UNITEDy STATES PATENT OFFICE 4 Claims.

The device forming the subject matter of this application is an oiler, and the invention aims to provide an oiler which is adapted to be assembled titi with any standard rock drill or the like, to replace the common line oiler, or multiple oiler, used at present. The invention aims, further, to provide novel means for securing a ilow of oil from the oiler to the rock drill which is to be oiled, the new of oil being governed by the pressure within the drill, as the automatic valve of the drill opens and closes; Y

It is within the province of the disclosure to improve generally and to enhance the utility of devices of that type to which the invention appertains.

With the above and other objects in view, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being under- .stood that changes in theprecise embodiment of the invention hereindisclosed, may be made within the scope of what is claimed, without departing from the spirit of the invention.

In the accompanying drawing: Fig. 1 shows, in side elevation, a portion of rock drill wherewith the device forming the subject matter oi this application has been assembled:

Fig. 2 is a longitudinal section of the oiler;

Fig. 3 is a cross section on the line 3-3 of Fig. 2;

Fig. 4 is a Flc. 2.

The 011er forming the subject matter of this application comprises a cylindrical body I, provided at one extremity with an end wall 6, there being a concaved recess 30 on the inner side of the end wall. A reduced neck 2 projects outwardly from the end wall 6. A plug 3 is threaded into the neck 2 and is provided with a cavity 4, which increases the capacity of the body I. The cavity t has a iiaed mouth 5, communicating with the recess 33. The inner end of the plug 31s flush with the wall 'of the recess 30. The .plug 3 is provided with an outstanding ilange l which abuts against the end of the neck 2. The plug 3 is pro'- vlded with an extension 8, having an opening 9, the opening l being adapted to receive a tool, used for threading the plug to place, as shown in Fig. 2.

The numeral I0 designates a foot, which is threaded into the end of the body I which is opposite to the neck 2. 'Ihe foot I0 has a ange II l'which abuts against the end of the body I. Outcross section on the line 4 4 of wardly of the ange Ii, the foot I0 is supplied with a Wrench head I2, whereby the foot can be threaded conveniently into the body I. A reduced, tapered, threaded neck I4 projects outwardly from the wrench head I2. In the outer end of the foot Ill, and, specically, in the outer end of the neck I4, there is a concaved recess I5. The foot ID has a central, inwardly extended projection I6, and about the projection I6 there is a circumscribing channel I'I, which increases the l0 capacity of the body or reservoir I. The projection I6 has a threaded bore I8. At the end of the threaded bore I8, there is a tapered chamber I9, located in the projection I6 of the foot ID. A reduced passage 20 leads from the chamber I3 through a valve seat 2| formed in the foot I0. Outwardly of the passage 2D, the foot has a smooth bore 22, merginginto a threaded bore 23, communicating with the recess I5.

A needle valve 24 is threaded for longitudinal adjustment into the bore.23, and includes a smooth portion which is slidable in the ysmooth bore 22. The needle valve 24 is tapered at its inner end, so as to cooperate with the seat 2I. In its outer surface, the needle va1ve 24 is supplied with one or more longitudinal grooves 25.

'Ihe numeral 2B marks a stem, located within the body I, centrally thereof. One end of the stem 26 is threaded into the bore I8 of the projection I6. The stem 26 carries a transverse disk 2l, located in the inner end of the projection I6. The disk 2l may be'referred to as a rst disk. The stem 26 has a dat sided enlarged portion 23, located adjacent to the rst disk 2l and facilitating the application of a tool whereby the stem 26 may be rotated and threaded into the bore I8 of the projection IB.

At one end of the stem 26. there is a second disk 29. The disk 29 is spaced from the inner surface of the end wall 8 of the body I and is disposed opposite to the recess 30. The disks 29 and 2l taper in thickness from their centers toward their circumferencea There is a space between the peripheries of the disks 29 and 21 and the inner surface of the body I.

At one end, the stem 26 has a passage 3|, which leads through the disk 29 and communicates with the recess 30. The passage 3i includes an enlarged part 32, extended through the disk 2l. The enlarged part 32 of the passage 3| has a flared mouth 33 communicating with the tapered chamber I9 in the projection I6 of the foot In. The rst disk 2l is supplied with a transversely enlarged chamber $0. The second disk 29 has a plurality of openings 34 therethrough. Alter- 

